DRIVE TRAIN SECTION RED PART NUMBERS INDICATE NEW PARTS 7-83 1 2 3 4 5 6 7 8 9 10 11 CONTENTS ELECTRICAL FRAME FRONT END CONTROL WHEEL ENGINE DRIVE TRAIN FUEL EXHAUST GENERAL REFERENCE Belt Drive Parts TRANSMISSION MAINSHAFT SUPPORT FOR BIG TWIN • When installing open belt drive units or custom tin primarys, our Transmission Mainshaft Support will give the needed support when aluminum primary is not used. • Use with 77349 rubber shielded sealed bearing. • Will not fit with rear belt drive. Fits Big Twin 4 speed 1965/Later Part 78504 • Designed to keep the crankshaft nut from backing off on BDL open belt drives. • Lockplate is manufactured from laser cut 3/16” stainless steel. • Includes 5/16-18 x 2” grade 8 allen bolts and 5/16” I.D. 6061 aluminum spacers for use with offset inserts. • The spacers are not necessary on offset inserts less than 3/4”. • Includes detailed instructions. ENGINE PULLEY NUT LOCK KIT FOR BDL OPEN BELT DRIVES Part 77390 Kit Shown Installed Fits BDL open belt drives with 2 piece engine pulleys
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